but as kron 4's mike pelton shows us, the bombing's have created a tense environment for many american muslims. how abimelech millions, kennet sh been watching >> it is a difficult line to walk because there want to focus on the victims and there is a concern and even dread. that we are hoping they are not moslem or that their of their connection to islam is not obvious. >> the san francisco-based american relations representative says that this fear is a backlash /muslims turned out to have islamic ties. >> it is you need to have a minority status in the united states. and when a white christian the blows something up it happens also. >> speculation is growing that the bombing suspect or muslim. they have not released a motive or anything linking their attack to religion and she fears some people's minds are already made up. >> we have already received some heat incidences and luckily, nothing has been escalated to a heat. >> reporter: as for setting the record straight? >> people like myself, and the civil rights lawyers, and teachers, students, with the larger american committee wha